Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/31e7f2cb48adc94bf8d45d7ecc81044f.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 Ranken例句_Ranken英汉例句_Ranken双解例句_沉淀汉英词典
During the process of computation the traditional Ranken's earth pressure theory and that of Coulomb's were reasonably simplified. 设计计算时，对传统的朗金土压力和库仑土压力理论进行了合理的简化。